A Manual of Elementary Chemistry, Theoretical and Practical: From the 10th Revised and Corrected English EdH.C. Lea, 1870 - 869 ページ |
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多く使われている語句
action alkaline aluminium ammonia ammonium anhydrous antimony aqueous arsenic atmosphere Atomic weight barium becomes bodies boiling bromide calcium called carbon dioxide carbonic acid caustic charcoal chemical chloride cobalt cold color colorless combination combustion composition compounds containing converted cooling copper crucible crystalline crystals decomposed decomposition density dilute dissolves easily electrical elements excess flame fluoride forms fused gases glass hydrate hydrochloric acid hydrogen sulphide ignition insoluble iodide iodine iron isomorphous latter liquid magnesium magnetic manganese melted mercury metal mixed mixture molecules monoxide nitrate nitric acid nitrogen obtained oil of vitriol oxide oxygen passing phosphate phosphorus plate platinum potash potassium potassium chloride powder precipitate prepared prisms produced proportion pure quantity rays red heat sal-ammoniac separated sesquioxide silicate silicium silver sodium carbonate solid soluble in water solution specific gravity substance sulphate sulphuric acid surface temperature tetroxide thallium tion trioxide tube uranic vapor vessel volatile volume wire yellow yields zinc
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26 ページ - It is better, on this account, in graduating the bottle, to make two scratches, as • represented in the figure, one at the top and the other at the bottom of the curve: this prevents any future mistake.
600 ページ - This is secured by its being washed in a stream of water for several weeks. Subsequently a weak solution of potash may be used, but this is not essential. The prolonged...
78 ページ - ... be infinitely small in comparison with the interval between any two impacts. — 3. That the influence of the molecular forces be infinitely small. When these conditions are not completely fulfilled, the gas partakes more or less of the nature of a liquid, and exhibits certain deviations from Gav-Lussac and Boyle's laws.
28 ページ - Since the loss of weight of a solid submerged in water is equal to the weight of the volume of water displaced...
76 ページ - The immediate cause of the phenomena of heat then is motion, and the laws of its communication are precisely the same, as the laws of the communication of motion.
155 ページ - ... divisions on the tube to which the mercury reaches, whilst the height of the column of mercury in the tube above the trough, together with that of the barometer, and the temperature of the air, are also read off.
138 ページ - I have spoken of it, are similar to those of the law of molecular diffusion, but it is important to observe that the phenomena of effusion and diffusion are distinct and essentially different in their nature. The effusion movement affects masses of gas, the diffusion movement affects molecules ; and a gas is usually carried by the former kind of impulse with a velocity many thousand times greater than by the latter.
413 ページ - ... that led to the discovery of the metal. The ore, consisting chiefly of blende, galena, and arsenical pyrites, was roasted to expel sulphur and arsenic, then treated with hydrochloric acid, and the solution was evaporated to dryness. The impure zinc chloride thus obtained exhibited, when examined by the spectroscope, the first of the indigo lines above mentioned. The chloride was afterwards obtained in a state of greater purity, and from this the hydrate and the metal itself were prepared. The...
25 ページ - Specific gravity denotes the weight of a body, as compared with the weight of an equal bulk, or volume, of the standard body, which is reckoned as unity.
138 ページ - Lenarto has no doubt come from such an atmosphere, in which hydrogen greatly prevailed. This meteorite may be looked upon as holding imprisoned within it, and bearing to us, the hydrogen of the stars.